Girl, I'd go for mineral sunblock (zinc oxide or titanium dioxide based) kaya safer during pregnancy, a few of us pregnant moms stick to Neutrogena Ultra Sheer Dry-Touch SPF 50+ or Coppertone Sport kasi super water-resistant and available agad sa Watsons, Mercury, or Guardian! Ang importante talaga is reapply every 2 hours, lalo na kapag swimming, kaya dala-dala mo na yung small tube sa beach, at magsuot pa rin ng rash guard or shirt para extra protection, mas peace of mind talaga!